SCIENTIFIC ABSTRACT SHPITALNIKOV, K.F. - SHPITSBERG, A.L.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001549930004-6
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 9, 2001
• Sequence Number: 4
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

24531
The maximum output of a centrifugal.... S/147/61/000/002/010/015
E194/Ei84
U rDn
~Oa (6)
Cos (7)
The results of an experimental study of the flow capacity of the
inlet section of compressor impellers is then given and it is found
that the theoretical flow parameters give much higher outputs than
the experimental values. The stage intake could be increased by
some 20% if the rest of the impeller could handle it. The through-
put can be improved by having an appropriate value of inlet swirl,
or for a given output the compressor may be made smaller.
A numerical example is then given of determination ot optimum flow
parameters in the inlet section of an impeller and the relationship
between the optimum flow parameters and the relative radius at the
inlet to the impeller are plotted in Fig.9. The maximum flow
density is obtained by use of stationary guide vanes at inlet to the
impeller. A brief.discussion of the advantages of a correct inlet
Card 3/4

24531
The maximum output of a centrifugal.... S/147/61/000/002/o.lo/ol5
E194/EI84
swirl is given. There are 9 figures and 6 Soviet references.
SUBMITTED: March 22, 196o
XW;/IM; LL
Fig. 9
Card 4/4
0,6
0,4
0,2
1~ 6
80
-110
--- 60
so

27-536
s/oq6/6i/ooo/oo6/003/do6
0 E-194/-E155
AUTHOR: Shpitalln~~~ Candidate of Technical Sciences
TITLE: Selection of the.peripheral speed of the runner of a
centrifugal compress.or stage
PERIODICAL: Teplocnergetika, 1961, No.6, pp. 42-47
TEXT: The peripheral speed u2 of a centrifugal stage runner
is usually found by a fo rmu la due to B. Ekkert. (Ref.1):
r
U
71--A9 -0
Ul= I/ H,
where 0 PO out/pO in is the compression ratio of the stage;
77
"~ad is the adiabatic head coefficient of the stage; Had is the
adiabatic head of the st,~ge; is the 9r,avitational constant;
:Z is the gas constant; k is the adiabati6 index of the process;
~.Cl is the temperature of the.adiabatically-retarded flow at
iniet to the runner. FrPvided that data are available for an
existing stage which does not differ too much from that being
Card 1/6

22536
5/oq6/61/ooo/oo6/003/oo6
Selection of the peripheral spe6d ... E194/E155
designed., the aAiabatic head coefficient may be selected
reliably on the!'basis of prototype data. 'Thd problem is much more
difficult if the'design stage differs substantially from
existing stages in the meridianal section of the flow path and in
the.~ype of blades on the runner. In this case correct select ' ion
of Had and calculation of u2 are very difficult. Therefore,
the peripheral speed of the runner must be selected on the basis-of
analvsis of the aerodynamics of air flow in the runners of several
variants. The relative merits of runners with*blades bent forward
(in the direction of rotation) which are termed 'active', or bent
back,,which are termed 'reactive', are 'then discussed. The
problem of the rational selection of peripheral speed of runner in
the gene'ral case, without allowance for changes in the parameters
of the air flow at the inlet to the wheel, was considered in a
previous article by the present author in Teplocnergetika No.4,
196o (Ref-3). In the present work the peripheral speed is
selected by investigation of changes in the flow parameter both at
inlet to and outlet from the runner. For the sake of.simplicity
the selection of runndr speed is illustrated by a numerical u-orked
example, which occupies nearly all of this article.
Card 2/6

22536
s/oq6/6l/ooo/oo6/003/oo6
Selection of the peripheral spe.ed ... E194/E155
The principal formulae derived are the folloiring:
w D
arc cos 'u (19)
P2 If .1 cp
(U2 + U,6)1 + SM arccos ,uD 2
D W1 CP (23)
2 2k k-1 U2
k + I gR IT.t + kR g +
a, ==,lrC tg
tVI CP c2u -uD (24)
D sin (are cos W, CP
=arc tg u, + w"
_.i t!'Icse expressions the following notation is used: D wl CT)
;Nr2
Card 3/ 6

22536
/61)0
s/o96 oo/oo6/00/oo6
Selection of the peripheral speed .... E194/E155
",'l cp is the average spewed at the,mean radius; w2
Js the outlet
speed; wu = IT2'* C 0 s P 202
is the discharge angle of flow from
the runner; X t.is ~L number commonly used to characterise the
condition of the flow, the suffix I relating to inlet and the
suffix 2 relating to discharge; a2 is the angle of flow at
discharge from the runner in absolute motion.
Fig.6 shows graphs Of*-.X2, P2 and a2 for the particular example
iv,orked in the article, constructed by means of equations (19),-
(23) and (24j. From thes~e graphs a number of conclusions are drawn
about the influepceof different factors in runner design on the
performance. On t*~4~'basis-of these considerations.-the optimum
design of the numerical'worked example under consideration is
recommended. It is concluded that in each particulAr case
selection of the peripheral speed of the runner in designing a
compressor stage consists not in simple selection of the head
coefficient Had but in investigation of the inlet and discharge
aerod-~namics of the runner. During this investigation it is
usualiy possible to avoid-undesirable effect*s of supersonic flow
within the stage, or at any rate to minimise-the negative influence
of such effects, and so to make a rational selection of the
Card 4/6 . peripheral speed of the runner. ,

SH"JULI-1111KOV, K.F., kand.tekhn.nauk
Carrying capacity of the input cross section of a centrifugal
compreosor stage. Energomashinostroenie 7 no.6:23-24 Je 161.
(MIRA 14-7)
(Compressors)

SHPITAL'NYY, A.A.
Formation of polyamide resins. Part 5. Participation of polymeri-
zation and polycondensation In the conversion of E-caprolactam
into polymer. Zhur.ob.khim. 26 no.2:530-534 F 156. (MLRA 9:8)
1. Leningradakiy takstillnyy institut.
(Polymers and polymerization) (Hyxamethylenimine)

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5
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with 72~
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00 11,11,114ty chlorinAtion. The rffivf of irmniniv matter on
to, rrmulti of the drin. wai evond. hv treating %Ample%
go with Cl before ano After the exto, with C.11. and ale. The
rr,ults show that the degree of pulp destruction does not
ff
l
00
A
ect essentia
ly the quantity 4 lignin pptd. by HpS04. .
and dnes not inflortsce at all thr anit. of Cl combined. A =0 0

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l
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by chlorination of the te.Quous metier. The
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Small difference between the Cl mutents of extd. and on- 0
extd. samples. Sprutv -tawdunt k mAly chlorinated by -60
HC10. while pure cellulose remaitted unch4ntvd after 23

00
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as it A. S. Shpilal*nyi, A. 1. %'ale%hkrvich and R. S. Lyashch. The fibers should be treated with water and fognuslin
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.1-he 4,afoslf courn
in the cast-in vpinnins soln. should be S

.00
00 .
ahout I-I..J%: thit yields tibers that am sticky when quent treatment Induced in them an optical anizatropy
i i
h 0

0 ant
ncrra-ed t
e strength and stretch. Dry msein
moist
and
bMile %Iwn dry. t'n,l,r certain spinning 4 mixed with %ri"s,- for 2 hrs
yielded fibers limi
can
00

so _
ng
itiers can be prepd. DIS.
a
t
condi Ions Off treatment, soft Ii of cellulose and ca-vin; fm better results cossein
cawin in art alkali soln. togohrr with CS, caused should be
olvin .

90
g
4vasiderable incrraw of viscosity (if [lie soln. and forma tirtlitninafily wetted for 2 Itrx. In halforequal wt. otwitter.
16C.
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III 2
h
t
f
II
k
h
.
. o
I
y w
cv
p
u
w. ')
ail fit 11c
tion of the S defivs. of cascin, yielding saft and elast'
eff-t on the vi-wotity a'P
oil -2turit
of viscose
Add
I =00
.
a.
Y
fibers. In a mi%t. conig. NaOff 2% and US, 2%, W
%
'A)% and more Of casein to viscose required an addni z00
.
i coniumid in the formation of S deriva. of
latter
:if the
I 11111t. Of alkali (3 1. of 11% NaOH per kg. of casein)
i . The
d
l 00
e
ast
astrin NIF Mf anti 11,SO, aim, yield soft an
.
.
enerated untreated cellulfmc-cuscin thread contained about 7U%
from
17
in was re
f th
i
h
fi =
00 e caw
,~ o
ty-
%v
g
fibrrs- V
g
ofthecawinuird. Treat men t (It such fibers with
by njeans of acids anti OS% it CS, was hotand
2% NaOH soln
.
-4d soapy tratcr -C with water. formalin and wst
of cawin. Tbc spinning p Mapy CT
rOccW
sIdn
3 added to the alk a

0
W
r .
.
wag the best. Fourteen references. A. A. Pindrorn
was M(*t sati%factory it a bath conig. HISOa 120-4210 1
' and NWS04 44) 240 k. 'I. of soin. was used. The addn. -
'see
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USSR/Chemistry - Synthetic Fibers Jul 52
"The Problem of the Formation of Polyamide
A'. Meos, A. StIr-
Resins," A. S. Shpital'nyy, Ye
kov., 4i~b_of Synthetic 1-ibers, Leningrad Textile
Inst imeni'S*.--M.
"Zhur Obshch Miim" Vol 22, No 7, pp 1266-1270
In the formation of polyamide structures, 7-
membered rings may be converted to polymers in
2 ways: polymerization and polycondensation.
States that~ contrary to published data, condi-
tions could be found under which N-methylcapro-
lactam forms polymers. The, resulting polymers
229T48
were f ou,nd to -be inore sensitive to heat than the
'polymers of 7-membered rings not' substituted at
,the N-atom. Products of the combination of Z-amin-
ocaprolactam with adj:pic and succini f, acids -.m rx e
!isolated. The addn of' E-aminocalroic acid to
E -caprolactam significantly increases the relative
viscosity of the polymer in the early stage of the
reaction.
t-4
229T48

USSJI/Chemistry - Synthetic Fibers Aug 53
"Opening the 'Ring, in E -Caprolactam Using, Dicar-
boxylic Acids of the Fatty Scries and Amines,"'A. S.
Shpitv.Iniy'---Ye. A. Meos and-'K. Ye. Perepelkin,
Lcnin~jrad Tech Inst im S. M. Kirova, Chair of Syn-
thetic Fibers
Zhur Obshch Khim, Vol 23, No 8, PP 1382-1363
Treated E-caprolactam (I) with aniline, hexa-mc-
thylenediaivine, and ethylenediamine an(I obtained
the reaction products and the benzoyl derivs of the
reaction products. Some of the products were also
270T28
isol-,tted in -the form of picrates and oxalates. Pre-
sents some J.(Icas on the character of the polymeriza-
tion -c ondenf;a-l-, ion processes taking place when (I) is
converted -to a polymer.
27OT2B

19
US,' It/Chemistry - Macromolecular chemistry
Card 1/1 Pub. 151 - 9/37
Authors Shpital'nyy,,,A. S.; PerepeUdn, K. E.; and Heos, E. A,
Title Process Of'formation of polyamide resins, Part 4,- The multistage process
of formation of polyamide resins and the products obtained from the re-
action of E - caprolactam vdth adipic. acid
Periodical Zhur. ob. khim. 24/3., 447-450, Mar 1954
Abstract i The multistage polymerization process occurring during the formation of
polyamides from;-- -caprolactam vras definitely proven'by the formation of
adipic acid -caprolactam reaction products uith a molar ratio of
1 : 2 and 1 : 4)o The properties of reaction products of different mole-
cular ratio and the solubility of Ag-sait, a reaction product during
equimolecular ratio of the basic components, were detemined* Thepre-
sence of benzoic acid in the reaction mixture during its reaction with
6 _ caprolactam is explained* Ten references: 7-USSR; 2-German and
1-TJSA (1843-1953). Table.
Institution: The Textile Institute, Leningrad
Submitted : July 3, 1953

virocess of formati OUPOIYAlnidd reSilli_ V. Pallid,
A

-ti-- of p
I at reac tiona

Sh al'uyl (T~Yftiic In.91, urivi). zhur. Obsh-
N q',"171,
6-
c- 49
MD-4(T
t
'
,
,
In tile course of,tran-f6rLatim, of caprolactant, into VIC
-
take
UM pru